Chapter 11.7, Problem 36SR

To determine

To find the sum of measures of interior angles of a triangle.

Answer to Problem 36SR

  $180°$

Explanation of Solution

Given information:

The polygon is a triangle.

Formula used:

To find the sum of the interior angles of a polygon, use formula $\left(n-2\right)\times 180°$

Calculation:

  $\left(n-2\right)\times 180°$ where ’n’ is the number of sides of the polygon

A triangle has 3 sides, hence, $n=3$

  $=\left(3-2\right)\times 180°$

Simplifying the same.

  $=180°$